<p>Variable coil density anisotropic innersprings in which the placement and density of the coils or spring units varies between one or more regions or areas of the innerspring to provide innersprings with different average spring rates in different zones or regions of the innerspring. Various anisotropic arrangements of coils in innersprings are disclosed.</p>
申请公布号
WO2009099993(A1)
申请公布日期
2009.08.13
申请号
WO2009US32812
申请日期
2009.02.02
申请人
SEALY TECHNOLOGY LLC
发明人
BEAMON, JAMES, A.;DEMOSS, LARRY, K.;MANUSZAK, BRIAN, M.;RUMBAUGH, WAYNE